package edu.sctu.practice.class02.shilaihong.assign04;

/**
 * Created by admin on 2015/12/17.
 */
public class StringExample {
    public static void main(String[] args) {
        String s1 = new String("you are a student");
        String s2 = new String("how are you");
        if (s1.equals(s2)){
            System.out.println("s1与s2相同");
        }
        else {
            System.out.println("s1与s2不相同");
        }

        String s3 = new String("22030219851022024");
        if (s3.startsWith("220302")){
            System.out.println("吉林的身份证");
        }

        String s4 = new String("你");
        String s5 = new String("我");
        if (s4.compareTo(s5)>0){
            System.out.println("按字典序s4大于s5");
        }
        else {
            System.out.println("按字典序s4小于s5");
        }

        int position=0;
        String path="C:\\java\\jsp\\A.java";
        position = path.lastIndexOf("\\");
        System.out.println("c:\\java\\jsp\\A.java中最后出现\\的位置："+position);

        String fileName=path.substring(12);
        System.out.println("c:\\java\\jsp\\A.java中含有的文件名："+fileName);

        String s6 = new String("100");
        String s7 = new String("123.678");
        int n1 = Integer.parseInt(s6);
        double n2 = Double.parseDouble(s7);
        double m = n1+n2;
        System.out.println(m);

        String s8 = String.valueOf(m);
        position = s8.indexOf(".");
        String temp = s8.substring(position+1);
        System.out.print("数字："+m+"有"+temp.length()+"位小数");
         String s9 = new String("ABCDEF");
        char a[]=s8.toCharArray();
        for(int i=a.length-1;i>=0;i--){
            System.out.print(""+a[i]);
        }
    }
}
